The is a specialized low-level formatting and repair tool specifically designed for USB flash drives using Alcor Micro chip controllers, such as the AU87101A. It is primarily used to restore functionality to "dead" or corrupted drives that are no longer recognized by standard operating systems or appear as "RAW". Full Feature Capabilities
In the tab, configure the target capacity. Leave it on auto-detect so the controller properly isolates corrupted physical NAND blocks.
: Divides a single drive into multiple distinct logical partitions.
The repack tool is predominantly deployed for custom configurations, diagnostics, and factory resets: Feature Functionality Technical Action / Description au87101a ufdisk repack
Click or Repack to apply the configuration directly to the controller firmware. 6. Troubleshooting Common Error Codes Error Message / Code Root Cause Resolution 30400: Unknown Flash error
In some cases, the damage is so severe that the controller's internal firmware is completely corrupted. One user on Reddit described this scenario: after damaging their drive, it showed up as "No Media," and they searched the internet for a "flash image" or firmware file to re-flash the controller.
: Look for "AlcorMP" or "UFD_Utility" specifically tagged for AU87101A. Using the wrong version can permanently "brick" the device. The is a specialized low-level formatting and repair
Right-click the executable file ( AlcorMP.exe or UFDisk.exe ) and select Run as Administrator . 5. Step 4: Step-by-Step Repacking and Flashing Procedure
Any specific displayed by the flashing tool. Share public link
Authoritative resources such as the Alcor MPTool Archive on USBDev index these specific releases. Use your browser's search feature ( Ctrl + F ) to find files tagged specifically for AU87101 or AlcorMP USB3 . Leave it on auto-detect so the controller properly
: Right-click the UFDisk.exe executable file and select Run as Administrator to ensure the tool has full read/write privileges over system storage controllers. Step 2: Device Detection Open the UFDisk Repack software interface.
Windows or macOS failed to format the drive. RAW File System: The file system is no longer recognized.
Leave your computer completely untouched while the tracking bar progresses. Interrupting this process can permanently brick the controller.
Navigate to the tool's options menu (some repacks require a password like 0000 or leaving it entirely blank to unlock settings).